bullock



H. 'K IPPLE & J. D. BULLOC RAILROAD GAR TRUCK."

Patented ned Tzm ljsi I No. 26,502.

H. KIPPLE AND J. D. BULLooK, or PHILADELPHIA, PE NSYLVANIA.

CAR-TRUCK.

Specification of Letters Patent No. 26,502, dated necemb feo, $1859. y

To all whom it may concern:

Be it known that we, HENRY KIPPLE and JAooB D. BULLooK, both of the cityand county of Philadelphia, State of Pennsylvania, have invented a newand useful Improvement in Railroad-Car Trucks; and we do hereby declarethe following to be a full, clear, and exact description of the same,ref erence being had tothe accompanying drawing and to the letters ofreference :marked thereon.

Our invention consists of a bolster and platform with interveningsprings of any suitable construction, in combination with inclined linkshaving sockets below adapted to pins on the under side of the platform,and having similar sockets above adapted to pins on the permanent beamsof the truck,

the whole being arranged onthe lattersubstantially as set forthhereafter, so that the bolster may have a lateral play limited by thelinks, thus imparting to the car an easy lateral movement as it passesover curves and uneven portions of the track.

In order to enable others skilled in the art to make and use ourinvention, we will now proceed to describe its construction andoperation.

On reference to the accompanying drawing which forms a part of thisspecification, Figure 1, is a transverse vertical section of a railroadcar truck with our improvements. Fig. 2, a longitudinal section on theline 1, 2 Fig. 1.

A and A are the two side beams, B and B, the two end beams, and G and Cthe two intermediate transverse beams of a railroad car truck. Betweenthe two beams G and C, is situated the bolster D, which is of such alength that it may have a slight end play between the side beams A and Aof the truck. Below the bolster is a platform G suspended by links H Hfrom the beams C and C of the truck, and between the platform and thebolster intervene two or more elliptical springs I, or springs of othersuitable form and construction. The links H are situated one pair neareach end of the bolster and platform, each pair being connected at thetop to a pin a which rests on and is capable of turning in sockets Z2 b,one of which is secured to each of the beams C and O of the truck. Thelower ends of each pair of links are connected to a pin 6 which isadapted to and is capable of turning in a socket f secured to the underside of the platform G.

Between each link and the pin a intervenes a block or step adapted tothe shape ofthe pin so as to turnfthereomand betweenreach 1 link and thepin e is a similarblock Hand betweenthe pin and the platform is a capmsituated directly over each cap it.

The car restson the bolster D,so .tliatfits i 1 weight is exerted on thesprings I I anddi.

through the latter and the links onxthe pins a which rest on the twotransverse beams C,

and C of the track. 1

It willbe evident that as'the truck passes over the curved or unevenportions of the track, the bolster D will be free to move 'lati erallybetween the two side beams 1A andfA i I of the truck: "Whenthisfpmovement offthe. bolster takes, place" the links lwill vibrate 13freely in the pins a above, andbelowonwthe A pin 6 as the socketslz, andof the links are; adapted to the form of their respective pinsi 1 :1

Should there be any undue friction of the sockets on the pins,th'elatter willmoveflin. their sockets the pin a onthe sockets b b on;the beams C and C,iand -ithe pinein the socket f on the under sideofthej platformjGg Each pair of links is slightly inclined from; y 1

their lower ends upwardtoward the center; I of the truck so that whenthe bolster has a tendency to movefrom leftto right it isre strained bythe' lefthand linksyand whejniu 1 moving from right to leftit isrestrained by; y 1 A 1 the right hand links. a

It Will now be ,seen thathalthough as 1 bolster has .sufiicient lateral.play to, yield, as

the car passes curves inthe track ,(thug bi H viating the disagreeablejar which takes place when permanent bolsters areused) its movement islimited by the inclined links tofi A l with theside beams of the truck."A A such an extent that it cannot come in contact.

e claim as our invention anjdjdesire toil,

secure by Letters Patent- The bolster D andplatformG with the a 10 0 1tervening springs I of any suitable construction in combination withtheinclined linlmjm H H, their sockets h and 2', and thepinsya,,i A Athe whole being arranged on the truck sub- 1 stantially as set forthand; fortheupurpose 1 11 In testimonywhereof, wehavesignedour}; AVAnames to this specification:before two sub w 5} scribing witnesses.

HENRY KIPPLE.

it-nesses HENRY H. PRICE, i R. S. WEST. A

JAooB 1). BULLoo j i

